This is a city simulation game

made with Unity.

This game primarily talks

about global warming, and

encourages people to save it.

Demo Link:

https://flandrescarlet-15532.itch.io/island-city

Made with：

I observed that simulation games are usually interesting, and people often

feels a sense of achievement when they build something on their own.

Besides, with a simulation game, people can understand the difficulty of

doing something, and learn knowledge about it.

Therefore, I decided to make a simulation game, presenting the serious

problem of global warming to people.

I looked for information about global warming online, and

found some impressing data:

A city like Ney York and Shanghai produces more than 190

million tons of CO2 annually, which is about 500 000 kilo tons

every day.

Currently, average global temperature is about 17 ℃ , about

1.5 ℃ higher than that in 19th Century. However, a save

temperature that prevents sea surface from rising should be

lower than 13℃ .

Eventually, I set my game’s goal to controlling average

temperature of a single city to 5℃ , and set the emission of CO2

of factories and residences based of the researches.

IDEA

RESEARCH

Mind Map

City

Building

Land

Grid

Resources Attributes

Score

Environment

Tempurature

Steel

Coin

Hint & Align

Calculated

Based on tempurature

I wrote a fairy tale to introduce the topic

of global warming and greenhouse effect,

then talked about how earth is suffering

serious environmental problems.

ABOUT

THE

STORY

Conguatulations!

You've just successfully

saved a city.To celebrate

that, let me tell you a

story:

Hmm... Sorry to hear

that you failed in this

game.

For compensation, let

me tell you a story:

Seems that you've exited

in the middle of the

game...Well, nevermind,

let me tell you a story:

Let me tell you a

story:

Once upon a time, in a lush forest

named Verdantia, the trees whispered

secrets of theearth, and the animals

lived in harmony with the beauty of

nature.

The forest was home to a wise old owl

named Olliver, who wasknown for his

vast knowledge of the forest.

Oliver explained, "The world outside

Verdantia has been careless with its

gifts. Humanshave been burning too

much coal and oil, releasing CO2 into

the air."

“This gas traps heat from the sun,

causing the planet's temperatureto

rise-a phenomenon known as the

greenhouse effect."

"Then, how can we save Verdantia?"

Dara asked."We must share the

beauty of Verdantia with human

beings",answered Olliver.

So Olliver and Dara went on a trip, telling

wonderfulstories of Verdantia to every

person they met.

Several years had past, and,

finally, their effort began

to work.Summers became

normal, and flowers bloomed

naturally.

The End

The End... But is this

really the end?

This is not only

a fairy tale,But

also the story of

earth.

Earth has been getting warmer and

warmer in the past severalyears, and

would continue in the future.

Shanghai, the city where l grew

up, had experiencedseveral years

without a satisfying snow.

The North Pole, where polar

bears live, is having less and less

ice.

But you can change this:

Spread the beauty of nature

to people around you,and

encourage them to spread it as

well.

That way, we can save our

earth, just like howOlliver and

Dara saved Verdantia!

Again, thank you very much

for patiently playing thisgame.

Hope this can inspire you of

something!

The summers were

becoming unbearably hot,

and the flowers bloomed

out of seasonThe balance

of the forest was disturbed,

and the creatures were

worried.

One day, a young

deer named Dara

approached Olliver.

"Why is our forest

suffering?" she asked

with concern in her

eyes.

Tutorials

I made pictures telling players

how to play this game, and

they would be played when

the player clicked “Start”

for the first time if they hadn't

finished the tutorial before.

In this game, you'll be operating a

city.

Welcome to

lsland City!

Now, you can

begin your trip

in Island City!

Keys

You have two types of resources:

Coins

and

Steels

You can use these

resources to buy lands

and build Buildings /

Environments on them.

Around a block, a

yellow grid means

Buff, a red grid means

Debuff. You can read

the description of

buildings for more

information.

By clicking this

button, you go on

to the next round.

This is called CO2

Deviation Level.

When it’s positive,

temperature rises.

When it’s negative,

temperature falls.

Your aim is to keep temperature

between 25 ℃ and -10 ℃ within

100 rounds.

As shown in their

descriptions, buildings

produce resources every

round.

(Either Coins or Steels.)

Buildings also cause

pollutions (CO2)

every round, while

environments (grass /

forests) reduce them.

In the end, you will

be scored based on

how close is current

temperature to 5℃ .

You can click on a block to

view details. You can also

upgrade buildings, which

increases their productivity

significantly.

PROTOTYPE

PLAY TESTING

Core

Mechanism

Setting

1.0

2.0

Problem: Due to PCG, the size of one

block changes when blocks around

it changes, so buildings cannot

be placed properly on one block.

Solution: Changing the size and shape

of blocks at the edge to make sure that

every block’s shape and size is the

same.

Problem: No significant change

when entering the next round.

Solution: Change water’s color

and sun’s position to simulate

the change between day & night

when heading on to the next round.

TECHNICAL ART

-PCG Land

Each block of land is consisted of 4 smaller blocks,

and each small block changes its shape based on the

state of blocks around it.

TECHNICAL ART

-Environment

Water

Skybox

Using Shader Graph to create a

sea surface.

Following a tutorial at

https://developer.unity.cn/proj

ects/646755dcedbc2a0dceeb0c

5a.

Using Coroutine to

control the sun’s

position and Water’s

color.

TECHNICAL ART

-VFX Shader

UI DESIGN

Using VFX Graph to create smoke for

factory and visual effect for building /

upgrading.

Smoke

Upgrade / Build

FINAL OUTPUT

FUTURE

PLAN

The game is currently only available in English,

but global warming is a world-wide problem.

Therefore, I’m planning to add more languages

so that the game can encourage people who

don’t speak English to save our planet.

The scoring system can be changed into a way

such that score is not only based on temperature,

but also the number of buildings/environments a

player build, so that players would be motivated

to build more blaocks instead of sticking with

blocks that already exist.

I’m also planning to add an infinite mode and a

Save/Load Feature, since this enables players to

utilize his/her creativity.

Language Options

New Scoring System

Infinite Mode &

Save/Load Feature